it's tacked to the fordeck where you'd normally tack a staysail... trimmed from cabintops with sheets run through twings then aft.
i'll see if i can hunt down a pic.....
we flew a spasail (sp?) on the ft lauterdale to kw race....basically it's a staysail but cut like a small spinnaker...trimms like a kite..positive luff curve like a kite and fast as hell...i never saw one till it went up....i was sold...cool ass sail.
it measures in a a jib under irc... kinda...